Colloidal Solution

A colloidal solution (also referred as colloidal suspension), is a type of heterogeneous solutionin which a small and tiny particles are regularly or uniformly suspended all through another substance. 

Characteristics of colloidal solution
  • Colloidal solutioncontains two immiscible phases in which one phase consists of small particles, dispersed in medium is known as dispersed phase (or you can say discontinuous phase) and other phase in which particles are dispersed is known as dispersed medium (or you can say continuous phase).
  •  The particle size of dispersed phase lies in the range 5 x 10-9 m to 2 x 10-7m in diameter.
  •  Colloidal solution exhibit Tyndall effect and Brownian movement (zig-zag path).
  • Colloidal solution do not settled down and clearly visible through ultra microscope.
Types of colloidal solution
  •  Foam:   Dispersed medium– Gas
                           Dispersed phase       Liquid
         Example – Shaving cream, whipped cream etc..
  • Emulsion: An emulsion in which one liquid is uniformly dispersed all through  another liquid.
                        Dispersed phase – Liquid
                        Dispersed medium – Liquid
         Example  Mayonnaise, milk etc.
  • Sol:  Dispersed phase – Solid
                      Dispersed medium – Liquid
 Example-Paint, blood and silver aquasols.

Related Posts

  • 83
    Dispersed phase: The discontinuous medium in which colloidal particles are dispersed  all through the another substance and scattered light, is called the dispersed phase (also referred as internal phase). Dispersion medium: The continuous medium (solid, liquid or gas) in which the colloidal particles of dispersed phase is  distributed,  is called the dispersion…
    Tags: dispersed, medium, phase, solution, particles, colloidal

Leave a Reply

Your email address will not be published. Required fields are marked *